Commit | Line | Data |
---|---|---|
72246da4 FB |
1 | /** |
2 | * dwc3-pci.c - PCI Specific glue layer | |
3 | * | |
4 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com | |
72246da4 FB |
5 | * |
6 | * Authors: Felipe Balbi <balbi@ti.com>, | |
7 | * Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions, and the following disclaimer, | |
14 | * without modification. | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in the | |
17 | * documentation and/or other materials provided with the distribution. | |
18 | * 3. The names of the above-listed copyright holders may not be used | |
19 | * to endorse or promote products derived from this software without | |
20 | * specific prior written permission. | |
21 | * | |
22 | * ALTERNATIVELY, this software may be distributed under the terms of the | |
23 | * GNU General Public License ("GPL") version 2, as published by the Free | |
24 | * Software Foundation. | |
25 | * | |
26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
27 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
28 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
29 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
30 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
31 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
32 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
33 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
36 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
37 | */ | |
38 | ||
39 | #include <linux/kernel.h> | |
46a57283 | 40 | #include <linux/module.h> |
72246da4 FB |
41 | #include <linux/slab.h> |
42 | #include <linux/pci.h> | |
43 | #include <linux/platform_device.h> | |
44 | ||
8300dd23 FB |
45 | #include "core.h" |
46 | ||
72246da4 FB |
47 | /* FIXME define these in <linux/pci_ids.h> */ |
48 | #define PCI_VENDOR_ID_SYNOPSYS 0x16c3 | |
49 | #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd | |
50 | ||
72246da4 FB |
51 | struct dwc3_pci { |
52 | struct device *dev; | |
53 | struct platform_device *dwc3; | |
54 | }; | |
55 | ||
72246da4 FB |
56 | static int __devinit dwc3_pci_probe(struct pci_dev *pci, |
57 | const struct pci_device_id *id) | |
58 | { | |
59 | struct resource res[2]; | |
60 | struct platform_device *dwc3; | |
61 | struct dwc3_pci *glue; | |
62 | int ret = -ENOMEM; | |
63 | int devid; | |
802ca850 | 64 | struct device *dev = &pci->dev; |
72246da4 | 65 | |
802ca850 | 66 | glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL); |
72246da4 | 67 | if (!glue) { |
802ca850 CP |
68 | dev_err(dev, "not enough memory\n"); |
69 | return -ENOMEM; | |
72246da4 FB |
70 | } |
71 | ||
1d046793 | 72 | glue->dev = dev; |
72246da4 FB |
73 | |
74 | ret = pci_enable_device(pci); | |
75 | if (ret) { | |
802ca850 CP |
76 | dev_err(dev, "failed to enable pci device\n"); |
77 | return -ENODEV; | |
72246da4 FB |
78 | } |
79 | ||
80 | pci_set_power_state(pci, PCI_D0); | |
81 | pci_set_master(pci); | |
82 | ||
8300dd23 | 83 | devid = dwc3_get_device_id(); |
7d26b587 PZ |
84 | if (devid < 0) { |
85 | ret = -ENOMEM; | |
802ca850 | 86 | goto err1; |
7d26b587 | 87 | } |
72246da4 | 88 | |
0949e99b | 89 | dwc3 = platform_device_alloc("dwc3", devid); |
72246da4 | 90 | if (!dwc3) { |
802ca850 | 91 | dev_err(dev, "couldn't allocate dwc3 device\n"); |
28f1a0d9 | 92 | ret = -ENOMEM; |
802ca850 | 93 | goto err1; |
72246da4 FB |
94 | } |
95 | ||
96 | memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); | |
97 | ||
98 | res[0].start = pci_resource_start(pci, 0); | |
99 | res[0].end = pci_resource_end(pci, 0); | |
100 | res[0].name = "dwc_usb3"; | |
101 | res[0].flags = IORESOURCE_MEM; | |
102 | ||
103 | res[1].start = pci->irq; | |
104 | res[1].name = "dwc_usb3"; | |
105 | res[1].flags = IORESOURCE_IRQ; | |
106 | ||
107 | ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res)); | |
108 | if (ret) { | |
802ca850 CP |
109 | dev_err(dev, "couldn't add resources to dwc3 device\n"); |
110 | goto err2; | |
72246da4 FB |
111 | } |
112 | ||
113 | pci_set_drvdata(pci, glue); | |
114 | ||
802ca850 | 115 | dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask); |
72246da4 | 116 | |
802ca850 CP |
117 | dwc3->dev.dma_mask = dev->dma_mask; |
118 | dwc3->dev.dma_parms = dev->dma_parms; | |
119 | dwc3->dev.parent = dev; | |
1d046793 | 120 | glue->dwc3 = dwc3; |
72246da4 FB |
121 | |
122 | ret = platform_device_add(dwc3); | |
123 | if (ret) { | |
802ca850 CP |
124 | dev_err(dev, "failed to register dwc3 device\n"); |
125 | goto err3; | |
72246da4 FB |
126 | } |
127 | ||
128 | return 0; | |
129 | ||
802ca850 | 130 | err3: |
72246da4 FB |
131 | pci_set_drvdata(pci, NULL); |
132 | platform_device_put(dwc3); | |
133 | ||
72246da4 | 134 | err2: |
802ca850 | 135 | dwc3_put_device_id(devid); |
72246da4 FB |
136 | |
137 | err1: | |
802ca850 | 138 | pci_disable_device(pci); |
72246da4 | 139 | |
72246da4 FB |
140 | return ret; |
141 | } | |
142 | ||
143 | static void __devexit dwc3_pci_remove(struct pci_dev *pci) | |
144 | { | |
145 | struct dwc3_pci *glue = pci_get_drvdata(pci); | |
146 | ||
8300dd23 | 147 | dwc3_put_device_id(glue->dwc3->id); |
72246da4 FB |
148 | platform_device_unregister(glue->dwc3); |
149 | pci_set_drvdata(pci, NULL); | |
150 | pci_disable_device(pci); | |
72246da4 FB |
151 | } |
152 | ||
153 | static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = { | |
154 | { | |
155 | PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, | |
156 | PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), | |
157 | }, | |
158 | { } /* Terminating Entry */ | |
159 | }; | |
160 | MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); | |
161 | ||
162 | static struct pci_driver dwc3_pci_driver = { | |
0949e99b | 163 | .name = "dwc3-pci", |
72246da4 FB |
164 | .id_table = dwc3_pci_id_table, |
165 | .probe = dwc3_pci_probe, | |
166 | .remove = __devexit_p(dwc3_pci_remove), | |
167 | }; | |
168 | ||
169 | MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); | |
170 | MODULE_LICENSE("Dual BSD/GPL"); | |
171 | MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer"); | |
172 | ||
95656336 | 173 | module_pci_driver(dwc3_pci_driver); |